putting rear main seal F 150

Daryll in NW FLA · #1 08/01/12, 03:44 PM

Need a rear main seal in my 1984 F-150 302 automatic 2wheel drive. Just wondering how hard it is t do. Put one in a VW years ago but had to pull the engine and take the flywheel off to get at it. Hopefully there is an easier way on the ford. ?? Thanks!

flewism · #2 08/02/12, 12:00 AM

OK , drop the trans, torque converter, and flywheel, and it will be staring in the face.
There is nothing extremely hard about it with the proper tools, I can't think of any specialty tools required.

davel745 · #3 08/02/12, 03:21 AM

Why is it leaking? Lots of miles or some other reason? I have found in the past that if the journal that the seal rubs on isn’t polished it will wear the seal out fairly quickly.

Daryll in NW FLA · #4 08/02/12, 03:29 AM

Truck has over 200,000 miles on it and I left it set for several months. I was hoping it took one of those two piece seals were you drop the oil pan and go for it. Thanks ,looks like I'll have a new project for the weekend!

HermitJohn · #5 08/02/12, 07:52 AM

Crank seals dont like setting for long periods of time. Sometimes they regain some flexibility through use, usually you replace them.

One piece seals are pain to change, but are more effective than two piece (more forgiving of surface imperfections) and usually you just change them automatically when you redo the clutch if you have any brains at all. Do that and you almost never have a rear seal leaking problem. Course those with automagic trannies are forced into the procedure when oil just pours out onto the ground quick as they pour it in the engine.